bangkokpattayahospital.com, Tiny Fox Lab

Botulinum toxin (Botox) is one of the most poisonous biological substances known. A couple of kilograms is enough to kill every single human on earth. It is so dangerous and also the most expensive substance ever made. A kilogram of the toxin is worth an estimated $134 trillion. – Tiny Fox Lab Facts

It is a neurotoxin produced by the bacterium Clostridium botulinum, an anaerobic, gram-positive, spore-forming rod commonly found on plants, in soil, water and the intestinal tracts of animals.

Preview photo credit: bangkokpattayahospital.com
Source: https://www.bbc.com/news/magazine-24551945